High-Resolution CCD Spectrometers
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- Spectrometers
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- Spectral Products
These devices are characterised by high quantum efficiency in the UV range and a high signal-to-noise ratio, making them ideal for a variety of demanding applications.
The SM303-HRS, SM540, and SM642-HRS models use back-thinned CCD detectors, known for their high sensitivity. Cooling these detectors to -10°C reduces thermal noise, leading to improved performance in detecting weak signals. Therefore, these spectrometers are optimal for analysing samples with low light intensity.
What’s in this range?
All the variants in the range and a comparison of what they offer
| Models | SM303-HRS | SM540 | SM642-HRS |
|---|---|---|---|
Detector | CCD back-thinned, cooled | CCD | CCD back-thinned |
Pixel | 1024 x 58 | 3648 | 2048 x 64 |
Spectral range | ~200-1050 nm | 200-1050 nm | 200-1050 nm |
Optical resolution (slit-dependent) | ~0.5 – 10 nm | 0.1 – 10 nm | 0.1 – 7 nm FWHM AVG |
Signal-to-noise ratio | >1000:1 | 250:1 | 450:1 |
FAQs
for High-Resolution CCD Spectrometers
The SM303 is designed for applications requiring a very high signal-to-noise ratio and a large dynamic range, such as fluorescence, Raman, and diffuse reflection. It offers extremely low dark noise and stray light, high UV quantum efficiency, and a high data acquisition speed.
Cooling significantly improves the signal-to-noise ratio by reducing thermal noise. This is essential for high-resolution spectroscopy, where detecting fine details in the spectra is required. Another advantage is the possibility of particularly long integration times.
The SM540 is distinguished by its high pixel count of 3648, which enables extraordinary spectral resolution. This makes it ideal for applications requiring detailed spectral analysis.
Due to its high spectral resolution and extended spectral range, the SM642-HRS is particularly suitable for examining complex samples such as detailed Raman and fluorescence studies, as well as for precise characterisation of LED properties.
High quantum efficiency in the UV range allows for the efficient detection and analysis of UV light, which is crucial for applications such as UV-VIS absorption spectroscopy and the study of photo reactions.
